2210123110212 has 144 divisors (see below), whose sum is σ = 5712279863472. Its totient is φ = 720337121280.

The previous prime is 2210123110133. The next prime is 2210123110213. The reversal of 2210123110212 is 2120113210122.

2210123110212 is a `hidden beast` number, since 2 + 210 + 1 + 231 + 10 + 212 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 133688221956 + 2076434888256 = 365634^2 + 1440984^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2210123110213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 295585818 + ... + 295593294.

It is an arithmetic number, because the mean of its divisors is an integer number (39668610163).

Almost surely, 2^{2210123110212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2210123110212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2856139931736).

2210123110212 is an abundant number, since it is smaller than the sum of its proper divisors (3502156753260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2210123110212 is a wasteful number, since it uses less digits than its factorization.

2210123110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8518 (or 8513 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 2210123110212 its reverse (2120113210122), we get a palindrome (4330236320334).

The spelling of 2210123110212 in words is "two trillion, two hundred ten billion, one hundred twenty-three million, one hundred ten thousand, two hundred twelve".